Squamous Part Of The Temporal Bone, Lateral View

Description

Squamous part of the temporal bone occupies the lateral wall of the cranium, forming a thin, fan shaped plate that lies inferior to the parietal bone and posterior to the frontal process of the zygomatic bone. Anteriorly, the squamous temporal continues as the zygomatic process, projecting toward the zygomatic bone to complete the zygomatic arch; inferior to this root sits the mandibular fossa and the articular eminence at the margin of the temporomandibular joint. Superiorly, the curving temporal lines mark the attachment limits of temporalis fascia and muscle, while the squamosal suture traces a serrated boundary between squamous temporal and parietal. Bony sutures are the roadmap here. Clinically, the lateral surface of the squamous temporal helps orient you to the pterion region, where the frontal, parietal, temporal, and sphenoid bones meet and where fractures may lacerate the anterior branch of the middle meningeal artery, producing an epidural hematoma. The fixed lateral perspective supports teaching of trauma landmarks on skull radiographs and CT bone windows, because the thin squamous plate contrasts with the thicker zygomatic root and the temporomandibular articular contour. Surface geography matters when planning burr holes, temporalis splitting incisions, or preauricular approaches where the zygomatic arch defines the superior limit of exposure. Use this illustration in gross anatomy labs and neuroanatomy courses to reinforce lateral skull osteology, or in operative atlases and trauma education materials discussing pterional craniotomy planning, zygomatic arch fractures, and temporomandibular joint topography. Anatomical accuracy verified by SciePro's Medical Advisory Board.